Low-pass filtering of noisy field Schlumberger sounding curves. Part II: Application

Journal Article · Sat Feb 01 00:00:00 EST 1986 · Geophys. Prospect.; (United States)

DOI:https://doi.org/10.1111/j.1365-2478.1986.tb00457.x· OSTI ID:5624739

Ghosh, N; Wadhwa, R S; Shrotri, B S; Patella, D

The basic principles of the application of the linear system theory for smoothing noise-degraded d.c. geoelectrical sounding curves were recently established by Patella. A field Schlumberger sounding is presented to demonstrate first their application and validity. To achieve this purpose, firstly it is pointed out that the required smoothing or low-pass filtering can be considered as an intrinsic property of the transformation of original Schlumberger sounding curves into pole-pole (two-electrode) curves. Then the authors sketch a numerical algorithm to perform the transformation, opportunely modified from a known procedure for transforming dipole diagrams into Schlumberger ones. Finally they show a field example with the double aim of demonstrating (i) the high quality of the low-pass filtering, and (ii) the reliability of the transformed pole-pole curve as far as quantitative interpretation is concerned.

• Research Organization: Dipartimento di Geofisica e Vulcanologia, Universita di Napoli, Largo S. Marcellino 10, I-80138 Napoli
• OSTI ID: 5624739
• Journal Information: Geophys. Prospect.; (United States), Vol. 34:1
• Country of Publication: United States
• Language: English

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